Patent US3321986A successfully refreshed from Google Patents.
US3321986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bi-directional transmission
Assignee: Babcock and Wilcox Co
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Filing: 1964-09-18
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Granted: 1967-05-30
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Expires: 1984-09-18
Abstract
No abstract record available.
Inventors
- 👤 Robert E Chappell
- 👤 John E Nelson
- 👤 John R Saltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:27
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/003; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19447
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A TRANSMISSION INCLUDING A FRAME, INPUT AND OUTPUT SHAFTS ROTATABLE IN THE FRAME,A FIRST DRIVE TRAIN INTERCONNECTING SAID SHAFTS, A SECOND DRIVE TRAIN INTERCONNECTTING SAID SHAFTS AT A DIFFERENT TORQUE RATIO, AND A PAIR OF OPPOSITELY ACTING ONE-WAY DRIVING MEANS, ONE INCORPORATED IN EACH DRIVE TRAIN, AT LEAST ONE OF SAID DRIVE TRAINS INCLUDING A DRIVING ELEMENT AND A DRIVABLE ELEMENT, THE ONE-WAY DRIVING MEANS IN SAID LAST-MENTIONED TRAIN IN-
Claim 2
Dependent Claim
70 words
A TRANSMISSION INCLUDING A FRAME, INPUT AND OUTPUT SHAFTS ROTATABLE IN THE FRAME,A FIRST DRIVE TRAIN INTERCONNECTING SAID SHAFTS, A SECOND DRIVE TRAIN INTERCONNECTTING SAID SHAFTS AT A DIFFERENT TORQUE RATIO, AND A PAIR OF OPPOSITELY ACTING ONE-WAY DRIVING MEANS, ONE INCORPORATED IN EACH DRIVE TRAIN, AT LEAST ONE OF SAID DRIVE TRAINS INCLUDING A DRIVING ELEMENT AND A DRIVABLE ELEMENT, THE ONE-WAY DRIVING MEANS IN SAID LAST-MENTIONED TRAIN IN-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |